avcodec/sheervideo: add 10-bit interlaced RGB(A) support
[ffmpeg.git] / libavcodec / dxva2_h264.c
1 /*
2  * DXVA2 H264 HW acceleration.
3  *
4  * copyright (c) 2009 Laurent Aimar
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  */
22
23 #include "libavutil/avassert.h"
24
25 #include "h264.h"
26 #include "h264data.h"
27 #include "mpegutils.h"
28
29 // The headers above may include w32threads.h, which uses the original
30 // _WIN32_WINNT define, while dxva2_internal.h redefines it to target a
31 // potentially newer version.
32 #include "dxva2_internal.h"
33
34 struct dxva2_picture_context {
35     DXVA_PicParams_H264   pp;
36     DXVA_Qmatrix_H264     qm;
37     unsigned              slice_count;
38     DXVA_Slice_H264_Short slice_short[MAX_SLICES];
39     DXVA_Slice_H264_Long  slice_long[MAX_SLICES];
40     const uint8_t         *bitstream;
41     unsigned              bitstream_size;
42 };
43
44 static void fill_picture_entry(DXVA_PicEntry_H264 *pic,
45                                unsigned index, unsigned flag)
46 {
47     assert((index&0x7f) == index && (flag&0x01) == flag);
48     pic->bPicEntry = index | (flag << 7);
49 }
50
51 static void fill_picture_parameters(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h,
52                                     DXVA_PicParams_H264 *pp)
53 {
54     const H264Picture *current_picture = h->cur_pic_ptr;
55     int i, j;
56
57     memset(pp, 0, sizeof(*pp));
58     /* Configure current picture */
59     fill_picture_entry(&pp->CurrPic,
60                        ff_dxva2_get_surface_index(avctx, ctx, current_picture->f),
61                        h->picture_structure == PICT_BOTTOM_FIELD);
62     /* Configure the set of references */
63     pp->UsedForReferenceFlags  = 0;
64     pp->NonExistingFrameFlags  = 0;
65     for (i = 0, j = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
66         const H264Picture *r;
67         if (j < h->short_ref_count) {
68             r = h->short_ref[j++];
69         } else {
70             r = NULL;
71             while (!r && j < h->short_ref_count + 16)
72                 r = h->long_ref[j++ - h->short_ref_count];
73         }
74         if (r) {
75             fill_picture_entry(&pp->RefFrameList[i],
76                                ff_dxva2_get_surface_index(avctx, ctx, r->f),
77                                r->long_ref != 0);
78
79             if ((r->reference & PICT_TOP_FIELD) && r->field_poc[0] != INT_MAX)
80                 pp->FieldOrderCntList[i][0] = r->field_poc[0];
81             if ((r->reference & PICT_BOTTOM_FIELD) && r->field_poc[1] != INT_MAX)
82                 pp->FieldOrderCntList[i][1] = r->field_poc[1];
83
84             pp->FrameNumList[i] = r->long_ref ? r->pic_id : r->frame_num;
85             if (r->reference & PICT_TOP_FIELD)
86                 pp->UsedForReferenceFlags |= 1 << (2*i + 0);
87             if (r->reference & PICT_BOTTOM_FIELD)
88                 pp->UsedForReferenceFlags |= 1 << (2*i + 1);
89         } else {
90             pp->RefFrameList[i].bPicEntry = 0xff;
91             pp->FieldOrderCntList[i][0]   = 0;
92             pp->FieldOrderCntList[i][1]   = 0;
93             pp->FrameNumList[i]           = 0;
94         }
95     }
96
97     pp->wFrameWidthInMbsMinus1        = h->mb_width  - 1;
98     pp->wFrameHeightInMbsMinus1       = h->mb_height - 1;
99     pp->num_ref_frames                = h->sps.ref_frame_count;
100
101     pp->wBitFields                    = ((h->picture_structure != PICT_FRAME) <<  0) |
102                                         ((h->sps.mb_aff &&
103                                         (h->picture_structure == PICT_FRAME)) <<  1) |
104                                         (h->sps.residual_color_transform_flag <<  2) |
105                                         /* sp_for_switch_flag (not implemented by FFmpeg) */
106                                         (0                                    <<  3) |
107                                         (h->sps.chroma_format_idc             <<  4) |
108                                         ((h->nal_ref_idc != 0)                <<  6) |
109                                         (h->pps.constrained_intra_pred        <<  7) |
110                                         (h->pps.weighted_pred                 <<  8) |
111                                         (h->pps.weighted_bipred_idc           <<  9) |
112                                         /* MbsConsecutiveFlag */
113                                         (1                                    << 11) |
114                                         (h->sps.frame_mbs_only_flag           << 12) |
115                                         (h->pps.transform_8x8_mode            << 13) |
116                                         ((h->sps.level_idc >= 31)             << 14) |
117                                         /* IntraPicFlag (Modified if we detect a non
118                                          * intra slice in dxva2_h264_decode_slice) */
119                                         (1                                    << 15);
120
121     pp->bit_depth_luma_minus8         = h->sps.bit_depth_luma - 8;
122     pp->bit_depth_chroma_minus8       = h->sps.bit_depth_chroma - 8;
123     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG)
124         pp->Reserved16Bits            = 0;
125     else if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
126         pp->Reserved16Bits            = 0x34c;
127     else
128         pp->Reserved16Bits            = 3; /* FIXME is there a way to detect the right mode ? */
129     pp->StatusReportFeedbackNumber    = 1 + DXVA_CONTEXT_REPORT_ID(avctx, ctx)++;
130     pp->CurrFieldOrderCnt[0] = 0;
131     if ((h->picture_structure & PICT_TOP_FIELD) &&
132         current_picture->field_poc[0] != INT_MAX)
133         pp->CurrFieldOrderCnt[0] = current_picture->field_poc[0];
134     pp->CurrFieldOrderCnt[1] = 0;
135     if ((h->picture_structure & PICT_BOTTOM_FIELD) &&
136         current_picture->field_poc[1] != INT_MAX)
137         pp->CurrFieldOrderCnt[1] = current_picture->field_poc[1];
138     pp->pic_init_qs_minus26           = h->pps.init_qs - 26;
139     pp->chroma_qp_index_offset        = h->pps.chroma_qp_index_offset[0];
140     pp->second_chroma_qp_index_offset = h->pps.chroma_qp_index_offset[1];
141     pp->ContinuationFlag              = 1;
142     pp->pic_init_qp_minus26           = h->pps.init_qp - 26;
143     pp->num_ref_idx_l0_active_minus1  = h->pps.ref_count[0] - 1;
144     pp->num_ref_idx_l1_active_minus1  = h->pps.ref_count[1] - 1;
145     pp->Reserved8BitsA                = 0;
146     pp->frame_num                     = h->frame_num;
147     pp->log2_max_frame_num_minus4     = h->sps.log2_max_frame_num - 4;
148     pp->pic_order_cnt_type            = h->sps.poc_type;
149     if (h->sps.poc_type == 0)
150         pp->log2_max_pic_order_cnt_lsb_minus4 = h->sps.log2_max_poc_lsb - 4;
151     else if (h->sps.poc_type == 1)
152         pp->delta_pic_order_always_zero_flag = h->sps.delta_pic_order_always_zero_flag;
153     pp->direct_8x8_inference_flag     = h->sps.direct_8x8_inference_flag;
154     pp->entropy_coding_mode_flag      = h->pps.cabac;
155     pp->pic_order_present_flag        = h->pps.pic_order_present;
156     pp->num_slice_groups_minus1       = h->pps.slice_group_count - 1;
157     pp->slice_group_map_type          = h->pps.mb_slice_group_map_type;
158     pp->deblocking_filter_control_present_flag = h->pps.deblocking_filter_parameters_present;
159     pp->redundant_pic_cnt_present_flag= h->pps.redundant_pic_cnt_present;
160     pp->Reserved8BitsB                = 0;
161     pp->slice_group_change_rate_minus1= 0;  /* XXX not implemented by FFmpeg */
162     //pp->SliceGroupMap[810];               /* XXX not implemented by FFmpeg */
163 }
164
165 static void fill_scaling_lists(const AVCodecContext *avctx, AVDXVAContext *ctx, const H264Context *h, DXVA_Qmatrix_H264 *qm)
166 {
167     unsigned i, j;
168     memset(qm, 0, sizeof(*qm));
169     if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG) {
170         for (i = 0; i < 6; i++)
171             for (j = 0; j < 16; j++)
172                 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][j];
173
174         for (i = 0; i < 64; i++) {
175             qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][i];
176             qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][i];
177         }
178     } else {
179         for (i = 0; i < 6; i++)
180             for (j = 0; j < 16; j++)
181                 qm->bScalingLists4x4[i][j] = h->pps.scaling_matrix4[i][ff_zigzag_scan[j]];
182
183         for (i = 0; i < 64; i++) {
184             qm->bScalingLists8x8[0][i] = h->pps.scaling_matrix8[0][ff_zigzag_direct[i]];
185             qm->bScalingLists8x8[1][i] = h->pps.scaling_matrix8[3][ff_zigzag_direct[i]];
186         }
187     }
188 }
189
190 static int is_slice_short(const AVCodecContext *avctx, AVDXVAContext *ctx)
191 {
192     assert(DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 1 ||
193            DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2);
194     return DXVA_CONTEXT_CFG_BITSTREAM(avctx, ctx) == 2;
195 }
196
197 static void fill_slice_short(DXVA_Slice_H264_Short *slice,
198                              unsigned position, unsigned size)
199 {
200     memset(slice, 0, sizeof(*slice));
201     slice->BSNALunitDataLocation = position;
202     slice->SliceBytesInBuffer    = size;
203     slice->wBadSliceChopping     = 0;
204 }
205
206 static int get_refpic_index(const DXVA_PicParams_H264 *pp, int surface_index)
207 {
208     int i;
209     for (i = 0; i < FF_ARRAY_ELEMS(pp->RefFrameList); i++) {
210         if ((pp->RefFrameList[i].bPicEntry & 0x7f) == surface_index)
211           return i;
212     }
213     return 0x7f;
214 }
215
216 static void fill_slice_long(AVCodecContext *avctx, DXVA_Slice_H264_Long *slice,
217                             const DXVA_PicParams_H264 *pp, unsigned position, unsigned size)
218 {
219     const H264Context *h = avctx->priv_data;
220     H264SliceContext *sl = &h->slice_ctx[0];
221     AVDXVAContext *ctx = avctx->hwaccel_context;
222     unsigned list;
223
224     memset(slice, 0, sizeof(*slice));
225     slice->BSNALunitDataLocation = position;
226     slice->SliceBytesInBuffer    = size;
227     slice->wBadSliceChopping     = 0;
228
229     slice->first_mb_in_slice     = (sl->mb_y >> FIELD_OR_MBAFF_PICTURE(h)) * h->mb_width + sl->mb_x;
230     slice->NumMbsForSlice        = 0; /* XXX it is set once we have all slices */
231     slice->BitOffsetToSliceData  = get_bits_count(&sl->gb) - 8;
232     slice->slice_type            = ff_h264_get_slice_type(sl);
233     if (sl->slice_type_fixed)
234         slice->slice_type += 5;
235     slice->luma_log2_weight_denom       = sl->pwt.luma_log2_weight_denom;
236     slice->chroma_log2_weight_denom     = sl->pwt.chroma_log2_weight_denom;
237     if (sl->list_count > 0)
238         slice->num_ref_idx_l0_active_minus1 = sl->ref_count[0] - 1;
239     if (sl->list_count > 1)
240         slice->num_ref_idx_l1_active_minus1 = sl->ref_count[1] - 1;
241     slice->slice_alpha_c0_offset_div2   = sl->slice_alpha_c0_offset / 2;
242     slice->slice_beta_offset_div2       = sl->slice_beta_offset     / 2;
243     slice->Reserved8Bits                = 0;
244
245     for (list = 0; list < 2; list++) {
246         unsigned i;
247         for (i = 0; i < FF_ARRAY_ELEMS(slice->RefPicList[list]); i++) {
248             if (list < sl->list_count && i < sl->ref_count[list]) {
249                 const H264Picture *r = sl->ref_list[list][i].parent;
250                 unsigned plane;
251                 unsigned index;
252                 if (DXVA_CONTEXT_WORKAROUND(avctx, ctx) & FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO)
253                     index = ff_dxva2_get_surface_index(avctx, ctx, r->f);
254                 else
255                     index = get_refpic_index(pp, ff_dxva2_get_surface_index(avctx, ctx, r->f));
256                 fill_picture_entry(&slice->RefPicList[list][i], index,
257                                    sl->ref_list[list][i].reference == PICT_BOTTOM_FIELD);
258                 for (plane = 0; plane < 3; plane++) {
259                     int w, o;
260                     if (plane == 0 && sl->pwt.luma_weight_flag[list]) {
261                         w = sl->pwt.luma_weight[i][list][0];
262                         o = sl->pwt.luma_weight[i][list][1];
263                     } else if (plane >= 1 && sl->pwt.chroma_weight_flag[list]) {
264                         w = sl->pwt.chroma_weight[i][list][plane-1][0];
265                         o = sl->pwt.chroma_weight[i][list][plane-1][1];
266                     } else {
267                         w = 1 << (plane == 0 ? sl->pwt.luma_log2_weight_denom :
268                                                sl->pwt.chroma_log2_weight_denom);
269                         o = 0;
270                     }
271                     slice->Weights[list][i][plane][0] = w;
272                     slice->Weights[list][i][plane][1] = o;
273                 }
274             } else {
275                 unsigned plane;
276                 slice->RefPicList[list][i].bPicEntry = 0xff;
277                 for (plane = 0; plane < 3; plane++) {
278                     slice->Weights[list][i][plane][0] = 0;
279                     slice->Weights[list][i][plane][1] = 0;
280                 }
281             }
282         }
283     }
284     slice->slice_qs_delta    = 0; /* XXX not implemented by FFmpeg */
285     slice->slice_qp_delta    = sl->qscale - h->pps.init_qp;
286     slice->redundant_pic_cnt = sl->redundant_pic_count;
287     if (sl->slice_type == AV_PICTURE_TYPE_B)
288         slice->direct_spatial_mv_pred_flag = sl->direct_spatial_mv_pred;
289     slice->cabac_init_idc = h->pps.cabac ? sl->cabac_init_idc : 0;
290     if (sl->deblocking_filter < 2)
291         slice->disable_deblocking_filter_idc = 1 - sl->deblocking_filter;
292     else
293         slice->disable_deblocking_filter_idc = sl->deblocking_filter;
294     slice->slice_id = h->current_slice - 1;
295 }
296
297 static int commit_bitstream_and_slice_buffer(AVCodecContext *avctx,
298                                              DECODER_BUFFER_DESC *bs,
299                                              DECODER_BUFFER_DESC *sc)
300 {
301     const H264Context *h = avctx->priv_data;
302     const unsigned mb_count = h->mb_width * h->mb_height;
303     AVDXVAContext *ctx = avctx->hwaccel_context;
304     const H264Picture *current_picture = h->cur_pic_ptr;
305     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
306     DXVA_Slice_H264_Short *slice = NULL;
307     void     *dxva_data_ptr = NULL;
308     uint8_t  *dxva_data, *current, *end;
309     unsigned dxva_size = 0;
310     void     *slice_data;
311     unsigned slice_size;
312     unsigned padding;
313     unsigned i;
314     unsigned type;
315
316     /* Create an annex B bitstream buffer with only slice NAL and finalize slice */
317 #if CONFIG_D3D11VA
318     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
319         type = D3D11_VIDEO_DECODER_BUFFER_BITSTREAM;
320         if (FAILED(ID3D11VideoContext_GetDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context,
321                                                        D3D11VA_CONTEXT(ctx)->decoder,
322                                                        type,
323                                                        &dxva_size, &dxva_data_ptr)))
324             return -1;
325     }
326 #endif
327 #if CONFIG_DXVA2
328     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
329         type = DXVA2_BitStreamDateBufferType;
330         if (FAILED(IDirectXVideoDecoder_GetBuffer(DXVA2_CONTEXT(ctx)->decoder,
331                                                   type,
332                                                   &dxva_data_ptr, &dxva_size)))
333             return -1;
334     }
335 #endif
336
337     dxva_data = dxva_data_ptr;
338     current = dxva_data;
339     end = dxva_data + dxva_size;
340
341     for (i = 0; i < ctx_pic->slice_count; i++) {
342         static const uint8_t start_code[] = { 0, 0, 1 };
343         static const unsigned start_code_size = sizeof(start_code);
344         unsigned position, size;
345
346         assert(offsetof(DXVA_Slice_H264_Short, BSNALunitDataLocation) ==
347                offsetof(DXVA_Slice_H264_Long,  BSNALunitDataLocation));
348         assert(offsetof(DXVA_Slice_H264_Short, SliceBytesInBuffer) ==
349                offsetof(DXVA_Slice_H264_Long,  SliceBytesInBuffer));
350
351         if (is_slice_short(avctx, ctx))
352             slice = &ctx_pic->slice_short[i];
353         else
354             slice = (DXVA_Slice_H264_Short*)&ctx_pic->slice_long[i];
355
356         position = slice->BSNALunitDataLocation;
357         size     = slice->SliceBytesInBuffer;
358         if (start_code_size + size > end - current) {
359             av_log(avctx, AV_LOG_ERROR, "Failed to build bitstream");
360             break;
361         }
362
363         slice->BSNALunitDataLocation = current - dxva_data;
364         slice->SliceBytesInBuffer    = start_code_size + size;
365
366         if (!is_slice_short(avctx, ctx)) {
367             DXVA_Slice_H264_Long *slice_long = (DXVA_Slice_H264_Long*)slice;
368             if (i < ctx_pic->slice_count - 1)
369                 slice_long->NumMbsForSlice =
370                     slice_long[1].first_mb_in_slice - slice_long[0].first_mb_in_slice;
371             else
372                 slice_long->NumMbsForSlice = mb_count - slice_long->first_mb_in_slice;
373         }
374
375         memcpy(current, start_code, start_code_size);
376         current += start_code_size;
377
378         memcpy(current, &ctx_pic->bitstream[position], size);
379         current += size;
380     }
381     padding = FFMIN(128 - ((current - dxva_data) & 127), end - current);
382     if (slice && padding > 0) {
383         memset(current, 0, padding);
384         current += padding;
385
386         slice->SliceBytesInBuffer += padding;
387     }
388 #if CONFIG_D3D11VA
389     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
390         if (FAILED(ID3D11VideoContext_ReleaseDecoderBuffer(D3D11VA_CONTEXT(ctx)->video_context, D3D11VA_CONTEXT(ctx)->decoder, type)))
391             return -1;
392 #endif
393 #if CONFIG_DXVA2
394     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD)
395         if (FAILED(IDirectXVideoDecoder_ReleaseBuffer(DXVA2_CONTEXT(ctx)->decoder, type)))
396             return -1;
397 #endif
398     if (i < ctx_pic->slice_count)
399         return -1;
400
401 #if CONFIG_D3D11VA
402     if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
403         D3D11_VIDEO_DECODER_BUFFER_DESC *dsc11 = bs;
404         memset(dsc11, 0, sizeof(*dsc11));
405         dsc11->BufferType           = type;
406         dsc11->DataSize             = current - dxva_data;
407         dsc11->NumMBsInBuffer       = mb_count;
408
409         type = D3D11_VIDEO_DECODER_BUFFER_SLICE_CONTROL;
410
411         av_assert0((dsc11->DataSize & 127) == 0);
412     }
413 #endif
414 #if CONFIG_DXVA2
415     if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD) {
416         DXVA2_DecodeBufferDesc *dsc2 = bs;
417         memset(dsc2, 0, sizeof(*dsc2));
418         dsc2->CompressedBufferType = type;
419         dsc2->DataSize             = current - dxva_data;
420         dsc2->NumMBsInBuffer       = mb_count;
421
422         type = DXVA2_SliceControlBufferType;
423
424         av_assert0((dsc2->DataSize & 127) == 0);
425     }
426 #endif
427
428     if (is_slice_short(avctx, ctx)) {
429         slice_data = ctx_pic->slice_short;
430         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_short);
431     } else {
432         slice_data = ctx_pic->slice_long;
433         slice_size = ctx_pic->slice_count * sizeof(*ctx_pic->slice_long);
434     }
435     return ff_dxva2_commit_buffer(avctx, ctx, sc,
436                                   type,
437                                   slice_data, slice_size, mb_count);
438 }
439
440
441 static int dxva2_h264_start_frame(AVCodecContext *avctx,
442                                   av_unused const uint8_t *buffer,
443                                   av_unused uint32_t size)
444 {
445     const H264Context *h = avctx->priv_data;
446     AVDXVAContext *ctx = avctx->hwaccel_context;
447     struct dxva2_picture_context *ctx_pic = h->cur_pic_ptr->hwaccel_picture_private;
448
449     if (DXVA_CONTEXT_DECODER(avctx, ctx) == NULL ||
450         DXVA_CONTEXT_CFG(avctx, ctx) == NULL ||
451         DXVA_CONTEXT_COUNT(avctx, ctx) <= 0)
452         return -1;
453     assert(ctx_pic);
454
455     /* Fill up DXVA_PicParams_H264 */
456     fill_picture_parameters(avctx, ctx, h, &ctx_pic->pp);
457
458     /* Fill up DXVA_Qmatrix_H264 */
459     fill_scaling_lists(avctx, ctx, h, &ctx_pic->qm);
460
461     ctx_pic->slice_count    = 0;
462     ctx_pic->bitstream_size = 0;
463     ctx_pic->bitstream      = NULL;
464     return 0;
465 }
466
467 static int dxva2_h264_decode_slice(AVCodecContext *avctx,
468                                    const uint8_t *buffer,
469                                    uint32_t size)
470 {
471     const H264Context *h = avctx->priv_data;
472     const H264SliceContext *sl = &h->slice_ctx[0];
473     AVDXVAContext *ctx = avctx->hwaccel_context;
474     const H264Picture *current_picture = h->cur_pic_ptr;
475     struct dxva2_picture_context *ctx_pic = current_picture->hwaccel_picture_private;
476     unsigned position;
477
478     if (ctx_pic->slice_count >= MAX_SLICES)
479         return -1;
480
481     if (!ctx_pic->bitstream)
482         ctx_pic->bitstream = buffer;
483     ctx_pic->bitstream_size += size;
484
485     position = buffer - ctx_pic->bitstream;
486     if (is_slice_short(avctx, ctx))
487         fill_slice_short(&ctx_pic->slice_short[ctx_pic->slice_count],
488                          position, size);
489     else
490         fill_slice_long(avctx, &ctx_pic->slice_long[ctx_pic->slice_count],
491                         &ctx_pic->pp, position, size);
492     ctx_pic->slice_count++;
493
494     if (sl->slice_type != AV_PICTURE_TYPE_I && sl->slice_type != AV_PICTURE_TYPE_SI)
495         ctx_pic->pp.wBitFields &= ~(1 << 15); /* Set IntraPicFlag to 0 */
496     return 0;
497 }
498
499 static int dxva2_h264_end_frame(AVCodecContext *avctx)
500 {
501     H264Context *h = avctx->priv_data;
502     H264SliceContext *sl = &h->slice_ctx[0];
503     struct dxva2_picture_context *ctx_pic =
504         h->cur_pic_ptr->hwaccel_picture_private;
505     int ret;
506
507     if (ctx_pic->slice_count <= 0 || ctx_pic->bitstream_size <= 0)
508         return -1;
509     ret = ff_dxva2_common_end_frame(avctx, h->cur_pic_ptr->f,
510                                     &ctx_pic->pp, sizeof(ctx_pic->pp),
511                                     &ctx_pic->qm, sizeof(ctx_pic->qm),
512                                     commit_bitstream_and_slice_buffer);
513     if (!ret)
514         ff_h264_draw_horiz_band(h, sl, 0, h->avctx->height);
515     return ret;
516 }
517
518 #if CONFIG_H264_DXVA2_HWACCEL
519 AVHWAccel ff_h264_dxva2_hwaccel = {
520     .name           = "h264_dxva2",
521     .type           = AVMEDIA_TYPE_VIDEO,
522     .id             = AV_CODEC_ID_H264,
523     .pix_fmt        = AV_PIX_FMT_DXVA2_VLD,
524     .start_frame    = dxva2_h264_start_frame,
525     .decode_slice   = dxva2_h264_decode_slice,
526     .end_frame      = dxva2_h264_end_frame,
527     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
528 };
529 #endif
530
531 #if CONFIG_H264_D3D11VA_HWACCEL
532 AVHWAccel ff_h264_d3d11va_hwaccel = {
533     .name           = "h264_d3d11va",
534     .type           = AVMEDIA_TYPE_VIDEO,
535     .id             = AV_CODEC_ID_H264,
536     .pix_fmt        = AV_PIX_FMT_D3D11VA_VLD,
537     .start_frame    = dxva2_h264_start_frame,
538     .decode_slice   = dxva2_h264_decode_slice,
539     .end_frame      = dxva2_h264_end_frame,
540     .frame_priv_data_size = sizeof(struct dxva2_picture_context),
541 };
542 #endif